No data after 7 days

I got an sms from Nedbank on 13/02/2018 to download their Money app and I will be reimbursed with a 100mb of data. I downloaded the app and did not get reimbursed I then sent emails to Nedbank and I was called and told it takes 3 - 4 working days to get it. I have been waiting for a week full now and have not received the data. Every time I get a call they always say they have escalated it and that happened with 2 agents already . They ask the same question and that is to provide the emCertID which is ********** 39 and if my phone is prepaid and that i have compared till now no data received.